Alan Turing's Electronic Brain The Struggle to Build the ACE, the World's Fastest Computer

The mathematical genius Alan Turing, now well known for his crucial wartime role in breaking the ENIGMA code, was the first to conceive of the fundamental principle of the modern computer-the idea of controlling a computing machine's operations by means of a program of coded instructions, stored in the machine's 'memory'. In 1945 Turing drew up his revolutionary design for an electronic computing machine-his Automatic Computing Engine ('ACE'). A pilot model of the ACE ran its first program in 1950 and the production version, the 'DEUCE', went on to become a cornerstone of the fledgling British computer industry. The first 'personal' computer was based on Turing's ACE. Alan Turing's Automatic Computing Engine describes Turing's struggle to build the modern computer. The first detailed history of Turing's contributions to computer science, this text is essential reading for anyone interested in the history of the computer and the history of mathematics. It contains first hand accounts by Turing and by the pioneers of computing who worked with him. As well as relating the story of the invention of the computer, the book clearly describes the hardware and software of the ACE-including the very first computer programs. The book is intended to be accessible to everyone with an interest in computing, and contains numerous diagrams and illustrations as well as original photographs. The book contains chapters describing Turing's path-breaking research in the fields of Artificial Intelligence (AI) and Artificial Life (A-Life). The book has an extensive system of hyperlinks to The Turing Archive for the History of Computing, an on-line library of digital facsimiles of typewritten documents by Turing and the other scientists who pioneered the electronic computer.

Foreword. Introduction to the Centenary Edition. Part I: The National Physical Laboratory and the ACE Project. A Century of Measurement and Computation at the National Physical Laboratory, 1900-2000. The Creation of the NPL Mathematics Division. The Origins and Development of the ACE Project. The Pilot ACE at the National Physical Laboratory. Part II: Turing and the History of Computing. The ACE and the Shaping of British Computing. Computer Architecture and the ACE Computers. Turing and the Computer. From Turing Machine to "Electronic Brain". Part III: The ACE Computers. The Pilot ACE Instruction Format. Programming the Pilot ACE. The Pilot ACE: from Concept to Reality. The DEUCE-a User's View. Applications of the Pilot ACE and the DEUCE. The ACE Test Assembly, the Pilot ACE, the Big ACE, and the Bendix G15. The ACE Simulator and the Cybernetic Model. The Pilot Model and the Big ACE on the Web. Part IV: Electronics. How Valves Work. Recollections of Early Vacuum Tube Circuits. Circuit Design of the Pilot ACE and the Big ACE. Part V: Technical Reports and Lectures on the ACE and the Pilot ACE, 1945-1951. Proposed Electronic Calculator (1945). Notes on Memory (1945). The Turing-Wilkinson Lecture Series (1946-1947). The State of the Art in Electronic Digital Computing in Britain and the United States (1947).

Jack Copeland is Professor of Philosophy at the University of Canterbury, New Zealand, where he is Director of the Turing Archive for the History of Computing. His books include The Essential Turing, Colossus: The Secrets of Bletchley Park's Codebreaking Computers, Alan Turing's Automatic Computing Engine, Logic and Reality: Essays on the Legacy of Arthur Prior (all with Oxford University Press), and he has published more than 100 articles on the philosophy and history of computing, and mathematical and philosophical logic.